About Kahului, HI's Climate & Weather History

Kahului, in Hawaii, United States, is home to roughly 26,300 people in the Hawaii Time Zone at 20.9°N latitude.

In 2025, Kahului recorded an average annual temperature of 77°F. The hottest temperatures reached 90°F in October; the coolest were 65°F in February. Total precipitation for the year was 7 inches, with the wettest month being November.